<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>
       用户管理
      </el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)">

            </el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)">

            </el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top-end"
              :enterable="false">
              <el-button type="primary" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页功能 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
<el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>

   <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>

   <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>

   <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>

  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>

<!-- 修改用户的对话框 -->
<el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%" @close="editDialogClosed">
      <!-- 主体区域 -->
  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
       <el-input v-model="editForm.username" disabled></el-input>
       </el-form-item>

        <el-form-item label="邮箱" prop="email">
       <el-input v-model="editForm.email"></el-input>
       </el-form-item>

        <el-form-item label="手机" prop="mobile">
       <el-input v-model="editForm.mobile"></el-input>
       </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>

<!-- 分配角色的对话框 -->

<el-dialog
  title="分配角色"
  :visible.sync="setRoledialogVisible"
  width="50%" @close="setRoleDialogClosed">
  <div>
    <p>当前的用户:{{userInfo.username}}</p>
    <p>当前的角色:{{userInfo.role_name}}</p>
    <p>分配新角色:
       <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoledialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>

  </div>
</template>

<script>
export default {
  data() {
      //验证邮箱的规则
      var checkEmail = (rule,value,cb) => {
        //验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9 -])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
        if(regEmail.test(value)) {
          //合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }
      //验证手机的规则
      var checkMobile = (rule,value,cb) => {
        const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/;
        if(regMobile.test(value)) {
          //合法的手机
          return cb()
        }
        cb(new Error('请输入合法的手机号码'))
      }
    return {
      queryInfo: {
        query: '',
        //当前的页码
        pagenum: 1,
        pagesize: 10
      },
      userlist: [],
      total: 0,
      //控制添加用户对话框的显示和隐藏
      addDialogVisible: false,
    
      // 添加用户的表单数据
      addForm:{
        username:'',
        password:'',
        email:'',
        mobile:''
      },

      // 添加表单验证规则的对象
      addFormRules:{
        username: [
          {required:true,message:'请输入用户名',trigger:'blur'},
          {min:2,max:10,message:'用户名长度2到10个字符之间',trigger:'blur'}
        ],
         password: [
          {required:true,message:'请输入密码',trigger:'blur'},
          {min:6,max:16,message:'密码长度6到16个字符之间',trigger:'blur'}
        ],
         email: [
          {required:true,message:'请输入邮箱',trigger:'blur'},
          { validator:checkEmail,trigger:'blur'}
        ],
         mobile: [
          {required:true,message:'请输入手机号',trigger:'blur'},
          { validator:checkMobile,trigger:'blur'}
        ]
      },
      // 控制修改用户对话框的显示隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      editFormRules: {
        email: [
          { required:true, message: '请输入用户邮箱',trigger:'blur'},
          { validator: checkEmail, trigger:'blur'}
        ],
        mobile: [
          { required:true, message: '请输入手机',trigger:'blur'},
          { validator: checkMobile, trigger:'blur'}
        ]
      },
        // 控制分配角色对话框的显示和隐藏
      setRoledialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo:{},
      // 所有角色的数据列表
      rolesList:[],
      // 已选择的角色id值
      selectedRoleId:'',
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听 switch 开关状态的改变
   async userStateChanged (userinfo) {
      // console.log(userinfo);
    const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`);
      if(res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
       return this.$message.error('更新用户状态失败!')
      }
      this.$message.success('更新用户成功!')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    //点击添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        
        if(!valid) return
        // 可以发起添加用户的请求
        const {data:res} = await this.$http.post('users',this.addForm)
        // console.log(res);
        if(res.meta.status !== 201) {
         return this.$message.error('添加用户失败!')
        }
        this.$message.success('添加用户成功!')
        //隐藏添加用户的对话框
        this.addDialogVisible = false
        //重新获取用户列表数据
        this.getUserList()
      })
    },
    //展示编辑用户的对话框
   async showEditDialog (id) {
      // console.log(id);
    const {data: res} = await this.$http.get('users/'+ id)
      if(res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败!')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户对话框的重置事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid);
        if(!valid) return
        //发起修改用户的请求
         const {data: res} = await this.$http.put('users/' + this.editForm.id,{
         email: this.editForm.email,
         mobile: this.editForm.mobile
        })

        if(res.meta.status !== 200) {
          return this.$message.error('修改用户失败!')
        }
        //关闭对话框
        this.editDialogVisible = false
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功!')
      })
    },
    //根据id删除用户
   async removeUserById (id) {
      // console.log(id);
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
      // console.log(confirmResult);
      if(confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认了删除');
    const {data: res} = await this.$http.delete('users/' + id)

    if(res.meta.status !== 200) {
      return this.$message.error('删除用户失败!')
    }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 展示分配角色的对话框
   async setRole (userInfo) {
      this.userInfo = userInfo
      // console.log(this.userInfo);
      const {data: res} = await this.$http.get('roles')
      if(res.meta.status !== 200) {
        this.$message.error('获取角色列表失败!')
      }
      this.rolesList = res.data
      this.setRoledialogVisible = true
    },
    // 点击按钮分配角色
   async saveRoleInfo () {
      if (!this.selectedRoleId) {
        
        return this.$message.error('请选择要分配的角色!')
      }
    const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
      rid: this.selectedRoleId
    })
    // console.log(res);
    if(res.meta.status !== 200) {
     return this.$message.error('分配角色失败!')
    }
      this.$message.success('分配角色成功!')
      this.setRoledialogVisible = false
       this.getUserList()

    },
    // 监听分配角色对话框关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = []
    }
  }
}
</script>

<style lang="less" scoped>
</style>